-
By: Gerstell, Arnold T. - Trost, Charles H. (Charles Henry),Type: ArticleIn: The journal of raptor researchVolume: 29Series:Issue: 2Date: 1995Page Range: 99--102Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-Subjects:
-
By: Hunt, W Grainger - Jenkins, J M - Jackman, Ronald E - Thelander, Carl G. - Gerstell, Arnold T.Type: ArticleIn: The journal of raptor researchVolume: 26Series:Issue: 4Date: 1992Page Range: 243--256Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-Subjects: